First trimester trophoblast and placental bed vascular volume measurements in IVF or IVF/ICSI pregnancies

M.S. Rifouna1, A.D. Reus1,*, A.H.J. Koning2, P.J. van der Spek2, N. Exalto1, E.A.P. Steegers1, and J.S.E. Laven3 Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, ErasmusMC, University Medical Center, Rotterdam, 3000CA, TheNetherlands Department of Bioinformatics, ErasmusMC,UniversityMedical Center, RoomNa-1523, POBox 2040, Rotterdam, 3000 CA, The Netherlands Department of Obstetrics and Gynecology, Division of Reproductive Medicine, Erasmus MC, University Medical Center, Rotterdam, 3000 CA, The Netherlands